Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
100065lightly pollutedexcellent91excellent
090079lightly pollutedexcellent91excellent
080086lightly pollutedexcellent111excellent
070085lightly pollutedexcellent121excellent
060082lightly pollutedexcellent141excellent
050094lightly pollutedexcellent161excellent
040097lightly pollutedexcellent151excellent
0300118moderately pollutedexcellent181excellent
0200148heavily pollutedexcellent201excellent
0100132moderately pollutedexcellent171excellent
0000137moderately pollutedexcellent151excellent
2300133moderately pollutedexcellent171excellent
2200131moderately pollutedexcellent161excellent
2100142heavily pollutedexcellent172excellent
2000137moderately pollutedexcellent171excellent
1900128moderately pollutedexcellent171excellent
1800126moderately pollutedexcellent201excellent
1700114moderately pollutedexcellent201excellent
1600129moderately pollutedgood221excellent
1500129moderately pollutedgood211excellent
1400115moderately pollutedexcellent191excellent
1300126moderately pollutedexcellent203excellent
120097lightly pollutedexcellent201excellent
1100165heavily pollutedgood281excellent